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debugging for fixing page table issues

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This commit is contained in:
Alex Zenla
2024-01-15 16:25:06 -08:00
parent 900eba0bd9
commit dfc3dc8e90
2 changed files with 21 additions and 11 deletions
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19
xenclient/src/mem.rs
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@ -74,25 +74,28 @@ impl PhysicalPages<'_> {
fn pfn_alloc(&mut self, pfn: u64, count: u64) -> Result<u64, XenClientError> {
let mut entries = vec![MmapEntry::default(); count as usize];
for (i, entry) in (0_u64..).zip(entries.iter_mut()) {
entry.mfn = self.p2m[(pfn + i) as usize];
for (i, entry) in entries.iter_mut().enumerate() {
entry.mfn = self.p2m[pfn as usize + i];
}
let chunk_size = 1 << XEN_PAGE_SHIFT;
let num_per_entry = chunk_size >> XEN_PAGE_SHIFT;
let num = num_per_entry * entries.len();
let mut pfns = vec![0u64; num];
for i in 0..entries.len() {
let num = num_per_entry * count as usize;
let mut pfns = vec![u64::MAX; num];
for i in 0..count as usize {
for j in 0..num_per_entry {
pfns[i * num_per_entry + j] = entries[i].mfn + j as u64;
}
}
let size = count << XEN_PAGE_SHIFT;
let actual_mmap_len = (num as u64) << XEN_PAGE_SHIFT;
let addr = self
.call
.mmap(0, size)
.mmap(0, actual_mmap_len)
.ok_or(XenClientError::new("failed to mmap address"))?;
self.call.mmap_batch(self.domid, num as u64, addr, pfns)?;
let result = self.call.mmap_batch(self.domid, num as u64, addr, pfns)?;
if result != 0 {
return Err(XenClientError::new("mmap_batch call failed"));
}
let page = PhysicalPage {
pfn,
ptr: addr,